Combined configuration-interaction and many-body-perturbation-theory calculations of energy levels and transition amplitudes in Be, Mg, Ca, and Sr

I. M. Savukov and W. R. Johnson
Phys. Rev. A 65, 042503 – Published 18 March 2002
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Abstract

Configuration interaction (CI) calculations in atoms with two-valence electrons, carried out in the V(N−2) Hartree-Fock potential of the core, are corrected for core-valence interactions using many-body perturbation theory (MBPT). Two variants of the mixed CI+MBPT theory are described and applied to obtain energy levels and transition amplitudes for Be, Mg, Ca, and Sr.

  • Received 6 November 2001

DOI:https://doi.org/10.1103/PhysRevA.65.042503

©2002 American Physical Society

Authors & Affiliations

I. M. Savukov* and W. R. Johnson†

  • Department of Physics, 225 Nieuwland Science Hall, University of Notre Dame, Notre Dame, Indiana 46566

  • *Electronic address: isavukov@nd.edu; URL: http://www.nd.edu/~isavukov
  • †Electronic address: johnson@nd.edu; URL: http://www.nd.edu/~johnson

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Vol. 65, Iss. 4 — April 2002

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